UV Index in Kamikawa, Japan

Last updated: May 3, 2025

In Kamikawa, Japan, staying informed about the UV Index is crucial for protecting your skin and overall health. Understanding the varying levels of UV radiation throughout the day can significantly aid in sunburn prevention and long-term skin health. With Kamikawa’s Dfb climate, which features cold winters and warm summers, residents and visitors should be particularly vigilant during peak hours when the UV Index often reaches as high as 9 between 11 AM and 12 PM. By keeping an eye on these levels, you can better enjoy the sun while minimizing harmful exposure risks.

Hourly UV Index in Kamikawa

As the sun rises, the UV Index begins its ascent, peaking at 9 between 11:00 AM and 12:00 PM, indicating a high risk of harm from unprotected sun exposure. Early risers will find a more manageable 3 at 7:00 AM, but as the day progresses, the intensity escalates, reaching a robust 8 by 10:00 AM and hitting its zenith with a 9 at noon. A gradual decline follows, with values decreasing to 7 at 1:00 PM, and dipping further to 4 by 3:00 PM. As evening approaches, the UV levels drop sharply, falling to 1 by 5:00 PM and fading to 0 by 7:00 PM. It's a day that reminds us to be vigilant under the sun's powerful rays, especially during the midday hours!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
TimeUVICategoryTime to Burn
07:003moderate30 min
08:005moderate30 min
09:007high25 min
10:008very high15 min
11:009very high15 min
12:009very high15 min
13:007high25 min
14:006high25 min
15:004moderate30 min
16:002low45 min
17:001low45 min
18:001low45 min
19:000low45 min

Monthly UV Index Trends in Kamikawa

Throughout the year, the UV Index undergoes significant seasonal changes that affect exposure risk. From January to February, the UV Index starts low, ranging from 2 to 3, with a longer burn time of 45 to 30 minutes, indicating a lower risk for skin damage. However, as spring approaches, the index rises sharply in March to 6, classified as high, which reduces burn time to 25 minutes. The summer months of April to August present the highest risk, with the UV Index peaking at 10—considered very high—and a consistent burn time of just 15 minutes. September marks a gradual decline with a UV Index of 8, while October to December sees a return to lower levels of 3 to 2. Visitors and residents are strongly advised to take protective measures, especially during April through September, when the UV levels are most intense; wearing sunscreen, protective clothing, and seeking shade can help minimize the risk of skin damage.

Monthly Maximum UV Index for Kamikawa, Japan

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Kamikawa. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec236891010108532
Data source: Statistical UV Index data for Kamikawa, based on information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

Compare Kamikawa UV Index with Other Japan Cities

The table above highlights how UV exposure in Kamikawa compares to other major locations across Japan. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Kamikawa's solar exposure compared to other cities in Japan. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Sapporo UVI2367999108532
Kamikawa236891010108532
Yokohama UVI35891111111110754
Tokyo UVI35891111111110754
Nagoya UVI468101111111110753
Osaka UVI468111111121110753